cursor.moveToPosition(0);
RadioGroup rg;
btnNxt.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
cursor.moveToNext();
tv.setText(cursor.getString(1));
rb1.setText(cursor.getString(2));
rb2.setText(cursor.getString(3));
rb3.setText(cursor.getString(4));
RadioButton ans = (RadioButton) findViewById(rg.getCheckedRadioButtonId());
String anstxt = ans.getText().toString();
dostaje błąd:
java.lang.NullPointerException
przy tym radio button, bo jak tego nie ma to się nie wysypuje. proszę o pomoc